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Accessing mime types via constants is deprecated. Now, we are using `Mime::Type[:JSON]` instead of `Mime::JSON`
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This was passing prior to 20b177b78ef5d21c8cc255f0376f6b2e948de234,
because we were not properly applying our contract that
`model.attr == model.tap(&:save).reload.attr` for this case. Now that
that has been resolved, this test is invalid on some adapters
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When a time object was assigned to a datetime column, the decorator for
TZ aware attributes wouldn't call super, so when using a database
without support for subsecond precision, the nanosecond would not be
truncated, leading to the value being marked as changed.
Interestingly, this also shows our new implementation of dirty checking
to be more robust than the old one (with less code and better
performance! :tada:!!!)
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They didn't help.
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Use the Rack utility methods for functional header manipulation. This
helps to eliminate coupling on the header hash
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I want to move the header hash to the super request object in order to
consolidate behavior. We should be switching out buffering strategies
rather than header strategies since things like "mutating headers after
send" is an error in both cases (buffering vs streaming).
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We should not mutate headers after the response has been committed.
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Nobody can replicate locally and the failure makes no sense
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When I removed the call to `super` to avoid the setting of
`@previous_changes`, I forgot to duplicate the other part of that
behavior, which led to failing tests
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The biggest source of the performance regression in these methods
occurred because dirty tracking required eagerly materializing and type
casting the assigned values. In the previous commits, I've changed dirty
tracking to perform the comparisons lazily. However, all of this is moot
when calling `save`, since `changes_applied` will be called, which just
ends up eagerly materializing everything, anyway. With the new mutation
tracker, it's easy to just compare the previous two hashes in the same
lazy fashion.
We will not have aliasing issues with this setup, which is proven by the
fact that we're able to detect nested mutation.
Before:
User.create! 2.007k (± 7.1%) i/s - 10.098k
After:
User.create! 2.557k (± 3.5%) i/s - 12.789k
Fixes #19859
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In order to improve the performance of dirty checking, we're going to
need to duplicate all of the `previous_` methods in Active Model.
However, these methods are basically the same as their non-previous
counterparts, but comparing `@original_attributes` to
`@previous_original_attributes` instead of `@attributes` and
`@original_attributes`. This will help reduce that duplication.
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This moves a bit more of the logic required for dirty checking into the
attribute objects. I had hoped to remove the `with_value_from_database`
stuff, but unfortunately just calling `dup` on the attribute objects
isn't enough, since the values might contain deeply nested data
structures. I think this can be cleaned up further.
This makes most dirty checking become lazy, and reduces the number of
object allocations and amount of CPU time when assigning a value. This
opens the door (but doesn't quite finish) to improving the performance
of writes to a place comparable to 4.1
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Make `assert_difference` return the result of the yielded block.
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With this we can perform new assertions on the returned value without having
to cache it with an outer variable or wrapping all subsequent assertions inside
the `assert_difference` block.
Before:
```
post = nil
assert_difference -> { Post.count }, 1 do
Post.create
end
assert_predicate post, :persisted?
```
Now:
```
post = assert_difference -> { Post.count } do
Post.create
end
assert_predicate post, :persisted?
```
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Fix typo in ignored_columns test [skip ci]
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Follow-up to #21720.
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Implement ActiveRecord::Base.ignored_columns
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ActiveRecord: use association's `unscope` when preloading
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Fix a bug with returning_disabled when using the postgresql adapter
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The returning_disabled configuration option is required to make postgresql partitioning triggers work. This commit fixes a bug where an invalid query would be made in cases where returning_disabled was true and objects were created with no attributes defined.
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Improve readability of docs by using code tag [ci skip]
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[ci skip]
[Action View Overview Guide] Add note about Jbuilder
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[skip ci]
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Fix ActiveRecord `instance_method_already_implemented` docs [ci skip]
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Fix out of sync comment [ci skip]
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It appears that as of version 4 the `db:test:prepare` task no longer depends on the `abort_if_pending_migrations` task, which leaves this comment out of sync.
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we want the request to go through the test harness, not directly call
the methods on the controller
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also remove req / res references
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again, since we are going through the test harness, all this is done
for us.
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Since we just go through the normal test harness that sets up a request
for us, we don't need to do this anymore.
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rather than calling methods on the controller. We should test the
values returned by the controller rather than assuming that the
internals are implemented in a certain way.
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I'm making this change so that I can construct response objects that
*don't* have the default headers applied. For example, I would like to
construct a response object from the return value of a controller.
If you need to construct a response object with the default headers,
then please use the alternate constructor:
`ActionDispatch::Response.create`
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Change the paths for both Gemfile lines to be 'engines/blorgh'
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They're now consistent.
Also changes the quotes to be single, so we only have one type of quote per line
[skip ci]
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Fix ActiveRecord::Locking doc [ci skip]
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WIP: Fix the AS::Callbacks terminator regression from 4.2.3
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Rails 4.2.3 AS::Callbacks will not halt chain if `false` is returned.
That is the behavior of specific callbacks like AR::Callbacks and
AM::Callbacks.
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Document Bearer prefix for Authorization header [ci skip]
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Removed Mocha from app generators tests
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